Home / 103,413.45-155,133.42-36,860.31

Finding the Fourth Proportional to 103,413.45, 155,133.42 and 36,860.31

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Solution

The fourth proportional to 103,413.45, 155,133.42 and 36,860.31 is: 55,295.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,413.45 : 155,133.42 = 36,860.31 : x
  2. Step 2: Convert to fraction form
    103,413.45/155,133.42 = 36,860.31/x
  3. Step 3: Cross multiply
    103,413.45x = 155,133.42 × 36,860.31
  4. Step 4: Simplify right side
    103,413.45x = 5,718,265,952.56
  5. Step 5: Solve for x
    x = 5,718,265,952.56/103,413.45
  6. Step 6: Final answer
    x = 55,295.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.